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Several late Paleoproterozoic (1800–1600Ma) mafic dyke swarms in the North China Craton (NCC), including the ca. 1780Ma Taihang, ca. 1730Ma Miyun, ca. 1620Ma Taishan, and a newly recognized ca. 1680Ma Laiwu swarm of this study, are compared. The newly defined Laiwu swarm contains tens of NNW-trending dykes, with widths of 10–40m and lengths of up to 10km in the Taishan Mts. in the eastern part of...
Great progress has been made in the last twenty years in understanding the unification of the North China Craton. According to a prevailing model it developed by amalgamation of four sub-blocks by three spatially and temporally separate orogenic belts: the first at ~1950Ma formed the Western Block, the second at ~1900Ma created the Eastern Block, and the third at ~1850Ma unified the Eastern and Western...
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